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838 Advanced VA Sample Processor by Metrohm AG
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Searched and foundadapter ad 56 advanced ch 150 combination relay copper strip cyclic cyclic voltammetry stripping dosing system dosino 800 dts manual level carrier manual metrohm mechanical specification for pumps print rack processor sample voltammetry water pump modification water transfer pump
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fully automatic determination of organic additives in electroplating baths with cvs voltammetry
| the 838 advanced va sample processor in a nutshell the new 838 advanced va sample processor allows the fully automatic and extremely flexible processing of large sample series in the routine monitoring of electroplating baths this means that the 838 advanced va sample processor is the ideal partner for the 797 va computrace for the fully automated determination of organic additives in electroplating baths by means of the cvs technique cyclic voltammetric stripping both dilution titration dt for the determination of suppressors levelers carriers and lat linear approximation technique or mlat modified linear approximation technique for the determination of brighteners can be automated the large sample rack of the 838 advanced va sample processor with 112 positions for different vessel sizes guarantees the rapid and efficient determination of additives even with large sample numbers the cvs technique is used for example for monitoring the following types of electroplating baths · acidi
| brightener determination brighteners in electroplating baths are determined by the two related calibration techniques lat linear approximation technique or mlat modified linear approximation technique in combination with the measuring techniques cvs cyclic voltammetric stripping or cpvs cyclic pulse voltammetric stripping all these techniques are supported by the 797 va computrace and can be automated with the 838 advanced va sample processor in brightener determination by the mlat calibration technique the so-called intercept solution and the standard brightener solution are dosed into the measuring vessel using 800 dosinos after the determination of the intercept value the bath sample is transferred to the measuring vessel by means of the peristaltic pump built into the 838 advanced va sample processor and added to the intercept solution in the lat calibration technique both the intercept solution and the bath samples are transferred into the measuring vessel by means of the perista
| specifications capacity 56 positions for sample vessels with max 11 ml solution 56 positions for sample vessels with max 50 ml solution sample volume operation peristaltic pump rotation rate flow rate 5 50 ml via external keypad dual-channel pump ±6.7 ±100 min1 adjustable in 15 steps typically 3.8 ml/min with 6.1826.020 tubing and 20 min1 typically 25 ml/min with 6.1826.150 tubing and 67 min1 the flow rate depends on the mechanical tension applied to the tubing and has been measured with water and in the absence of any counterpressure pressure dimensions max 0.4 mpa 4 bar width height depth 280 mm 730 mm 500 mm ordering information 2.838.0310 838 advanced va sample processor sample changer for the fully automatic determination of organic additives in electroplating baths by means of cvs in combination with the 797 va computrace capacity max 56 solutions of 5 to 11 ml volume and 56 solutions of 20 to 50 ml with built-in peristaltic pump for sample transfer flexible method setup and p
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